CN106004290A - Rear axle of automobile - Google Patents
Rear axle of automobile Download PDFInfo
- Publication number
- CN106004290A CN106004290A CN201610402012.6A CN201610402012A CN106004290A CN 106004290 A CN106004290 A CN 106004290A CN 201610402012 A CN201610402012 A CN 201610402012A CN 106004290 A CN106004290 A CN 106004290A
- Authority
- CN
- China
- Prior art keywords
- suspension
- swing arm
- axle
- top link
- flexible member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/004—Mounting arrangements for axles
- B60B35/006—Mounting arrangements for axles with mounting plates or consoles fitted to axles
- B60B35/007—Mounting arrangements for axles with mounting plates or consoles fitted to axles for mounting suspension elements to axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/006—Attaching arms to sprung or unsprung part of vehicle, characterised by comprising attachment means controlled by an external actuator, e.g. a fluid or electrical motor
Abstract
The invention discloses a rear axle of an automobile. The rear axle of the automobile comprises a rear axle body and a suspension. The rear axle body comprises a front connection plate, a rear connection plate and a plurality of longitudinal beams. The front connection plate and the rear connection plate are fixedly connected through the multiple longitudinal beams, so that an integral cage structure is formed. The suspension of the rear axle of the automobile is of a structure with dual transverse swing arms with unequal lengths. The suspension comprises two suspension units arranged symmetrically. Each suspension unit comprises an upper swing arm, a lower swing arm and an elastic element. The upper swing arm and the lower swing arm of each suspension unit are connected to the corresponding longitudinal beam. The elastic element of each suspension unit is installed on the corresponding longitudinal beam through an elastic element mounting base. The power mode of the rear axle is not fixed, and the rear axle of the automobile has quite high adaptability and universality.
Description
Technical field
The present invention relates to a kind of vehicle rear axle, be particularly suitable as rear axle of passenger vehicle, belong to technical field of vehicle.
Background technology
Common medium sized vehicle, especially passenger vehicle 3 class chassis, its back axle mostly is integral bridge type, before power is by being arranged in passenger vehicle
The electromotor of end is delivered to drive axle by a longer power transmission shaft, drive axle power is transferred to both sides wheel.Above-mentioned
Structural volume is huge, and control stability, riding comfort and NVH (noise, vibration and sound vibration roughness) performance are relatively low.
The chassis power of the most conventional pure electronic middle bus is arranged and has also been continued to use said structure, and disadvantages associated fails to obtain
Optimize.
Summary of the invention
Because the drawbacks described above of prior art, it is desirable to provide a kind of vehicle rear axle, the uncured power of this back axle
Form, possesses the strongest adaptability and versatility, is mainly concerned with pontic and the suspension of back axle.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of vehicle rear axle, including back axle pontic and suspension；It is structurally characterized in that, described back axle pontic include front connecting plate and after
Connecting plate, and many longerons；Described front connecting plate and rear connecting plate are fixed together formation entirety by many longerons
Formula cage structure；Described suspension is double transversal swinging arm structures of vehicle rear axle Length discrepancy, and this suspension includes that symmetrically arranged two hang
Frame unit, each suspension unit includes top link, is positioned at the lower swing arm below top link and is arranged on top link and top link
The flexible member of side；The top link of each suspension unit and lower swing arm are connected on corresponding longeron, each suspension unit
Flexible member is arranged on corresponding longeron by flexible member mounting seat.
The double cross arm structure of described Length discrepancy refers to form in two swing arms up and down of this suspension line between the mount points of outside
Length, wherein top link length accounts for 50% the 90% of lower swing arm length, and preferably 60% 70%, this kind is designed with beneficially
Promote the overall performance of this suspension, reduce tire wear.
According to embodiments of the invention, it is also possible to the present invention is further optimized, below for the skill formed after optimizing
Art scheme:
According to embodiments of the invention, connect between described front connecting plate and rear connecting plate and have five longerons；Five longerons under
Three layers it are divided on and.Install it is highly preferred that be provided with described flexible member on two longerons in lower floor longeron and middle level
Seat, two longerons on upper strata are through the top of described flexible member mounting seat, and are fixedly connected on one with flexible member mounting seat
Rise.
According to embodiments of the invention, be symmetrical arranged in the left and right sides of back axle pontic rear steering joint, back axle pontic with
Arranging rear top link and rear lower swing arm between rear steering joint, the inner of rear top link is connected with back axle pontic, outside rear top link
Hold and be connected with rear steering joint；The inner of rear lower swing arm is connected with back axle pontic, and the outer end of rear lower swing arm is connected with rear steering joint,
After every, before and after top link, side is respectively provided with the first rear suspension flexible member and the second rear suspension flexible member, each rear suspension bullet
The lower end of property element is all connected with the rear lower swing arm of respective side, and it is total that the side at the second rear suspension flexible member arranges rear shock absorber
Become.
The input of rear drive motor, the output shaft of this rear drive motor and rear reduction gearbox assembly is installed on described back axle pontic
End connects, and two outfans of rear reduction gearbox assembly are connected with the inner of jackshaft after two respectively, described rear jackshaft
Outer end through corresponding rear steering joint, and be connected with rear wheel assembly by front hub unit.
The rear top link of the same side and rear lower swing arm constitute double wishbone suspension；After preferably, top link and rear lower swing arm are ladder
Shape；The most described top link and lower swing arm are forged steel pieces or wrought aluminium part.
Described first rear suspension flexible member and the second rear suspension flexible member are air spring or helical spring.
Described front connecting plate and rear connecting plate are all overall in inverted trapezoidal；The most front connecting plate and rear connecting plate are high-strength steel
Become box shaped member.The parameter of high-strength steel is: tensile strength: TS >=340MPa(is cold rolling)；TS >=370MPa (hot rolling and pickling)；
Or yield strength: YS >=210MPa.
Every longeron uses two U-shaped beams to dock the formation box element that is fixedly linked；Preferably longeron is do not disconnect straight
Beam.Thus, by this kind of flat welding process at longeron intermediate formation one cavity closed, make this structure possess good mechanics
Performance.
Described vehicle rear axle is passenger vehicle rear driving axle.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is reasonable in design, lightweight level is higher, structure
Simply, compact, volume is little, and control stability, riding comfort and NVH performance are good.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of one embodiment of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the front view of Fig. 1；
Fig. 4 is the upward view of Fig. 1；
Fig. 5 is the left view of Fig. 1.
In the drawings
The left back wheels of 51-；Connecting plate before 52-off hind wheel group 53-；Connecting plate after 54-；55,56,57,58,59-longeron；60,61-
Top link；62,63-lower swing arms；64-installation component；65-flexible member mounting seat.
Detailed description of the invention
Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments.It should be noted that in the feelings do not conflicted
Under condition, the embodiment in the present invention and the feature in embodiment can be mutually combined.For sake of convenience, hereinafter as occurred
On " ", D score, "left", "right" printed words, only represent consistent with the direction, upper and lower, left and right of accompanying drawing itself, structure is not played limit
It is set for using.
A kind of vehicle rear axle modularity rear axle of passenger vehicle, as it is shown in figure 1, main by back axle pontic and suspension two large divisions's group
Become.Wherein, back axle pontic is made up of five longerons, two connecting plates, be respectively designated as from top to bottom longeron 55, left longeron 56,
Right vertical beam 57 and left longeron 58, right vertical beam 59.At this, longeron 1 is for installing the lower swing arm of left and right suspension, and left longeron 56 and the right side are vertical
Beam 57 is respectively used to connect suspension top link, and left longeron 3 and right vertical beam 3 are respectively used to connect left and right flexible member mounting seat.Should
Place's suspension is the integral bridge type suspension that a kind of vehicle rear axle is different from way-train, and have employed a kind of vehicle rear axle Length discrepancy
Double transversal swinging arm structures, this suspension is made up of a top link, a lower swing arm and flexible member, damping original paper.
In the present invention, the basic feature of pontic is: each beam body all uses 2 U-shaped high-strength steel beam body butt welding to form
Box-shaped part, by this kind of flat welding process at beam body intermediate formation one cavity closed, make this structure possess good
Mechanical property.The most each longeron is the straight beam not disconnected, and is provided with in longeron 55 and left longeron 56, right vertical beam 57 relevant position
Suspension erection support.Left longeron 58 and right vertical beam 59 in the present invention, be connected to flexible member erection support in the way of running through
Together, being welded as a whole with the erection support of flexible member, this longeron is near the centre position of air spring mounting seat, it is to avoid
Beam body bears moment of torsion, simplifies the force environment of beam body.
From the point of view of front view 3, five longerons are connected on forward and backward connecting plate in the way of running through connection, pass through
Which constitutes an overall structure.Five longerons with Triangle-Profile, from the point of view of front view, are connected by this connecting plate
Come, totally in upside-down trapezoid.This plate use high-strength steel butt welding box-shaped part be made, this forward and backward connecting plate with
Five longerons together, constitute a firm cage structure, jointly bear suspension load.
In the present invention, its suspension technical characteristic is as follows: be symmetrical arranged rear steering joint in the left and right sides of rear driving axle pontic,
Top link and rear lower swing arm after arranging between rear driving axle pontic and rear steering save, rear top link and rear lower swing arm are ladder
Shape, the inner of rear top link is connected with rear driving axle pontic by former and later two rubber bushings, and the outer end of rear top link passes through one
The rotating shaft of root band bearing is connected with rear steering joint, and former and later two rubber bushings and rear driving axle are passed through in the inner of described rear lower swing arm
Pontic connects, and the outer end of rear lower swing arm is connected, after every before top link with rear steering joint by the rotating shaft of two band bearings
Rear side be respectively provided with the first rear suspension flexible member and the second rear suspension flexible member, the lower end of each rear suspension flexible member all with
The rear lower swing arm of respective side connects, and arranges rear shock absorber assembly, described rear driving axle on the side of the second rear suspension flexible member
Installing rear drive motor on pontic, the output shaft of this rear drive motor is connected with the input of rear reduction gearbox assembly, rear reduction box
Two outfans of assembly are connected with the inner of jackshaft after two respectively, and the outer end of described rear jackshaft is through correspondence
Rear steering saves, and is connected with rear wheel assembly by front hub unit.
Using above technical scheme, the rear top link of homonymy and rear lower swing arm constitute double wishbone suspension, and each rear-swing arm is
Trapezoidal, be on the one hand conducive to periphery member to arrange and install, the convenience of periphery member assembling can be improved；On the other hand, it is possible to increase
Stress point inside rear-swing arm, improves self intensity and durability degree.Rear-swing arm is arranged on rear steering by the rotating shaft of band bearing and saves
On, rear steering joint can adaptive various sizes of brakes to adapt to the apolegamy of different automobile types, select also dependent on demand simultaneously
Single tire or tire sets are installed.Before and after rear-swing arm, side is respectively provided with rear suspension flexible member, it is possible to make rear-swing arm stress put down
Weighing apparatus, meets the heavily loaded requirement of passenger vehicle, is equipped with rear shock absorber assembly and makes rear driving axle have good damping performance.
In the present invention, rear top link refers to be positioned at the top link of rear side, and rear lower swing arm refers to be positioned at the lower swing arm of rear side, its
Middle rear side refers to the side of connecting plate after in Fig. 1.
The present invention, based on modular mentality of designing, simplifies bus coating installation step, improves production efficiency.As
Preferably, described first rear suspension flexible member is air spring or helical spring, and described second rear suspension flexible member is also empty
Air spring or helical spring.Described rear top link and rear lower swing arm are forged steel pieces or wrought aluminium part.By the use phase of forge piece
Possess good lightweight performance than conventional cast forging piece, chassis weight can be reduced further according to wrought aluminium part.
The content that above-described embodiment illustrates should be understood to that these embodiments are only used for being illustrated more clearly that the present invention, and not
For limiting the scope of the present invention, after having read the present invention, the those skilled in the art's various equivalent form of values to the present invention
Amendment each fall within the application claims limited range.
Claims (10)
1. a vehicle rear axle, including back axle pontic and suspension；It is characterized in that, described back axle pontic includes front connecting plate (53)
With rear connecting plate (54), and many longerons；Described front connecting plate (53) and rear connecting plate (54) are fixing even by many longerons
Be connected together formation monoblock type cage structure；
Described suspension is double transversal swinging arm structures of vehicle rear axle Length discrepancy, and this suspension includes symmetrically arranged two suspension unit,
Each suspension unit includes top link, is positioned at the lower swing arm below top link and is arranged on top link and top link side
Flexible member；The top link of each suspension unit and lower swing arm are connected on corresponding longeron, the elastic unit of each suspension unit
Part is arranged on corresponding longeron by flexible member mounting seat (65).
Vehicle rear axle the most according to claim 1, it is characterised in that described front connecting plate (53) and rear connecting plate (54) it
Between connect have five longerons (55,56,57,58,59)；Five longerons are divided into three layers from bottom to top.
Vehicle rear axle the most according to claim 2 a, it is characterised in that longeron (55) of lower floor and two of middle level indulge
Being provided with described flexible member mounting seat (65) on beam (56,57), two longerons (58,59) on upper strata pass described flexible member
The top of mounting seat (65), and be fixed together with flexible member mounting seat (65).
Vehicle rear axle the most according to claim 1, it is characterised in that turn after the left and right sides of back axle pontic is symmetrical arranged
Xiang Jie, top link and rear lower swing arm after arranging between back axle pontic and rear steering save, the inner of rear top link and back axle pontic
Connecting, the outer end of rear top link is connected with rear steering joint；The inner of rear lower swing arm is connected with back axle pontic, the outer end of rear lower swing arm
Being connected with rear steering joint, after every, before and after top link, side is respectively provided with the first rear suspension flexible member and the second rear suspension bullet
Property element, the lower end of each rear suspension flexible member is all connected with the rear lower swing arm of respective side, at the second rear suspension flexible member
Side arranges rear shock absorber assembly.
Vehicle rear axle the most according to claim 4, it is characterised in that install rear drive motor on described back axle pontic, should
The output shaft of rear drive motor is connected with the input of rear reduction gearbox assembly, and two outfans of rear reduction gearbox assembly are respectively with two
The inner connection of jackshaft after root, the outer end of described rear jackshaft passes corresponding rear steering joint, and by front hub list
Unit is connected with rear wheel assembly.
Vehicle rear axle the most according to claim 4, it is characterised in that the rear top link of the same side and rear lower swing arm constitute double
Transverse arm suspension；After preferably, top link and rear lower swing arm are trapezoidal；The most described top link and lower swing arm are forged steel pieces or wrought aluminium part.
Vehicle rear axle the most according to claim 5, it is characterised in that described first rear suspension flexible member and the second rear overhang
Frame flexible member is air spring or helical spring.
8. according to the vehicle rear axle one of claim 1-7 Suo Shu, it is characterised in that described front connecting plate (53) and rear connecting plate
(54) the most overall in inverted trapezoidal；The most front connecting plate (53) and rear connecting plate (54) are that box shaped member made by high-strength steel.
9. according to the vehicle rear axle one of claim 1-7 Suo Shu, it is characterised in that every longeron uses two U-shaped beam docking
Be fixedly linked formation box element；Preferably longeron is the straight beam not disconnected.
10. according to the vehicle rear axle one of claim 1-7 Suo Shu, it is characterised in that described vehicle rear axle is passenger vehicle rear drive
Bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402012.6A CN106004290B (en) | 2016-06-08 | 2016-06-08 | A kind of vehicle rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402012.6A CN106004290B (en) | 2016-06-08 | 2016-06-08 | A kind of vehicle rear axle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106004290A true CN106004290A (en) | 2016-10-12 |
| CN106004290B CN106004290B (en) | 2018-12-25 |
Family
ID=57090904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610402012.6A Active CN106004290B (en) | 2016-06-08 | 2016-06-08 | A kind of vehicle rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106004290B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741187A (en) * | 2016-12-27 | 2017-05-31 | 深圳市沃特玛电池有限公司 | Electric motor coach |
| GB2578660A (en) * | 2019-05-13 | 2020-05-20 | Rbw Sports & Classics Ltd | Electric car sub-frame |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0287278A1 (en) * | 1987-04-07 | 1988-10-19 | Technology Investments Limited | A vehicle chassis transverse structural member |
| EP1724130A1 (en) * | 2005-05-20 | 2006-11-22 | ArvinMeritor Technology, LLC | Bracket for an air spring |
| CN201026794Y (en) * | 2007-04-20 | 2008-02-27 | 上海科曼车辆部件系统有限公司 | Full-air front independent suspension frame of steering axle of low-floor city floor buses |
| CN102363407A (en) * | 2011-11-22 | 2012-02-29 | 东风汽车公司 | Independent suspension mounting bracket structure |
| CN104149597A (en) * | 2014-08-08 | 2014-11-19 | 成都旭腾蓝驱科技有限公司 | Double-axle driving mechanism of electric bus |
| CN104149596A (en) * | 2014-08-08 | 2014-11-19 | 成都旭腾蓝驱科技有限公司 | Wheel side electric driving module of electric bus |
-
2016
- 2016-06-08 CN CN201610402012.6A patent/CN106004290B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0287278A1 (en) * | 1987-04-07 | 1988-10-19 | Technology Investments Limited | A vehicle chassis transverse structural member |
| EP1724130A1 (en) * | 2005-05-20 | 2006-11-22 | ArvinMeritor Technology, LLC | Bracket for an air spring |
| CN201026794Y (en) * | 2007-04-20 | 2008-02-27 | 上海科曼车辆部件系统有限公司 | Full-air front independent suspension frame of steering axle of low-floor city floor buses |
| CN102363407A (en) * | 2011-11-22 | 2012-02-29 | 东风汽车公司 | Independent suspension mounting bracket structure |
| CN104149597A (en) * | 2014-08-08 | 2014-11-19 | 成都旭腾蓝驱科技有限公司 | Double-axle driving mechanism of electric bus |
| CN104149596A (en) * | 2014-08-08 | 2014-11-19 | 成都旭腾蓝驱科技有限公司 | Wheel side electric driving module of electric bus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741187A (en) * | 2016-12-27 | 2017-05-31 | 深圳市沃特玛电池有限公司 | Electric motor coach |
| GB2578660A (en) * | 2019-05-13 | 2020-05-20 | Rbw Sports & Classics Ltd | Electric car sub-frame |
| GB2578660B (en) * | 2019-05-13 | 2021-01-13 | Rbw Sports & Classics Ltd | Electric car sub-frame |
| US11548555B2 (en) | 2019-05-13 | 2023-01-10 | RBW Sports & Classics Ltd. | Electric car sub-frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106004290B (en) | 2018-12-25 |
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